Your favourite/least favourite Ferrari people

Who are your favourite and least favourite people in F1 Ferrari history? Do you have any names in particular?

Michael Schumacher is among the first group, helped Ferrari return to greatness and was always loyal to the team. Jean Todt was also instrumental in those achievements as was Rory Byrne, brilliant designer. Ross Brawn was a genius as well though I always got the impression he was more looking after Schumacher than Ferrari.

On the other hand we have Nigel Stepney, absolutely disgusting individual who initiated the Spygate.